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Gastélum-Reyes JJ, Peñalba-Garmendia MC, Fu-Castillo A, Navarro-Gómez N, Castillo-Gámez RA, Meling-López AE. FOREIGN SPIDERS AND INSECTS IN ANELOSIMUS CF. ANALYTICUS (ARANEAE: THERIDIIDAE) NESTS IN THE SONORAN DESERT, MEXICO. SOUTHWEST NAT 2022. [DOI: 10.1894/0038-4909-66.3.193] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Affiliation(s)
- Julio Javier Gastélum-Reyes
- Departamento de Investigación Científica y Tecnológica de la Universidad de Sonora, Hermosillo, Sonora C.P. 83000, Mexico
| | | | - Agustín Fu-Castillo
- Departamento de Investigación Científica y Tecnológica de la Universidad de Sonora, Hermosillo, Sonora C.P. 83000, Mexico
| | - Narciso Navarro-Gómez
- Departamento de Investigación Científica y Tecnológica de la Universidad de Sonora, Hermosillo, Sonora C.P. 83000, Mexico
| | - Reyna Amanda Castillo-Gámez
- Departamento de Investigación Científica y Tecnológica de la Universidad de Sonora, Hermosillo, Sonora C.P. 83000, Mexico
| | - Alf Enrique Meling-López
- Departamento de Investigación Científica y Tecnológica de la Universidad de Sonora, Hermosillo, Sonora C.P. 83000, Mexico
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Edwards FA, Edwards DP, Hamer KC, Fayle TM. Tropical land-use change alters trait-based community assembly rules for dung beetles and birds. Oecologia 2021; 195:705-717. [PMID: 33559003 PMCID: PMC7940334 DOI: 10.1007/s00442-020-04829-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2020] [Accepted: 12/09/2020] [Indexed: 12/04/2022]
Abstract
Tropical rainforest disturbance and conversion are critical drivers of biodiversity loss. A key knowledge gap is understanding the impacts of habitat modification on mechanisms of community assembly, which are predicted to respond differently between taxa and across spatial scales. We use a null model approach to detect trait assembly of species at local- and landscape-scales, and then subdivide communities with different habitat associations and foraging guilds to investigate whether the detection of assembly mechanisms varies between groups. We focus on two indicator taxa, dung beetles and birds, across a disturbance gradient of primary rainforest, selectively logged rainforest, and oil palm plantations in Borneo, Southeast Asia. Random community assembly was predominant for dung beetles across habitats, whereas trait convergence, indicative of environmental filtering, occurred across the disturbance gradient for birds. Assembly patterns at the two spatial scales were similar. Subdividing for habitat association and foraging guild revealed patterns hidden when focusing on the overall community. Dung beetle forest specialists and habitat generalists showed opposing assembly mechanisms in primary forest, community assembly of habitat generalists for both taxa differed with disturbance intensity, and insectivorous birds strongly influenced overall community assembly relative to other guilds. Our study reveals the sensitivity of community assembly mechanisms to anthropogenic disturbance via a shift in the relative contribution of stochastic and deterministic processes. This highlights the need for greater understanding of how habitat modification alters species interactions and the importance of incorporating species' traits within assessments.
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Affiliation(s)
- Felicity A Edwards
- School of Biology, University of Leeds, Leeds, LS2 9JT, UK.
- Department of Animal and Plant Sciences, University of Sheffield, Sheffield, S10 2TN, UK.
| | - David P Edwards
- Department of Animal and Plant Sciences, University of Sheffield, Sheffield, S10 2TN, UK
| | - Keith C Hamer
- School of Biology, University of Leeds, Leeds, LS2 9JT, UK
| | - Tom M Fayle
- Biology Centre of the Czech Academy of Sciences, Institute of Entomology, Ceske Budejovice, 370 05, Czech Republic
- Institute of Tropical Biology and Conservation, Universiti Malaysia Sabah, Kota Kinabalu, Sabah, Malaysia
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Fisher DN, Lichtenstein JLL, Costa-Pereira R, Yeager J, Pruitt JN. Assessing the repeatability, robustness to disturbance, and parent-offspring colony resemblance of collective behavior. J Evol Biol 2019; 33:410-421. [PMID: 31821669 DOI: 10.1111/jeb.13576] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2019] [Accepted: 12/04/2019] [Indexed: 11/27/2022]
Abstract
Groups of animals possess phenotypes such as collective behaviour, which may determine the fitness of group members. However, the stability and robustness to perturbations of collective phenotypes in natural conditions is not established. Furthermore, whether group phenotypes are transmitted from parent to offspring groups with fidelity is required for understanding how selection on group phenotypes contributes to evolution, but parent-offspring resemblance at the group level is rarely estimated. We evaluated the repeatability, robustness to perturbation and parent-offspring resemblance of collective foraging aggressiveness in colonies of the social spider Anelosimus eximius. Among-colony differences in foraging aggressiveness were consistent over time but changed if the colony was perturbed through the removal of individuals or via individuals' removal and subsequent return. Offspring and parent colony behaviour were correlated at the phenotypic level, but only once the offspring colony had settled after being translocated, and the correlation overlapped with zero at the among-colony level. The parent-offspring resemblance was not driven by a shared elevation but could be due to other environmental factors. The behaviour of offspring colonies in a common garden laboratory setting was not correlated with the behaviour of the parent colony nor with the same colony's behaviour once it was returned to the field. The phenotypes of groups represent a potentially important tier of biological organization, and assessing the stability and heritability of such phenotypes helps us better understand their role in evolution.
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Affiliation(s)
- David N Fisher
- Department of Psychology, Neuroscience and Behaviour, McMaster University, Hamilton, ON, Canada
| | - James L L Lichtenstein
- Department of Ecology, Evolution and Marine Biology, University of California - Santa Barbara, Santa Barbara, CA, USA
| | - Raul Costa-Pereira
- Department of Psychology, Neuroscience and Behaviour, McMaster University, Hamilton, ON, Canada.,Departamento de Biologia Animal, Instituto de Biologia, Universidade Estadual de Campinas (UNICAMP), Campinas, São Paulo, Brazil
| | - Justin Yeager
- Biodiversidad Medio Ambiente y Salud (BIOMAS), Direccion General de Investigacion, Universidad de las Américas, Quito, Ecuador
| | - Jonathan N Pruitt
- Department of Psychology, Neuroscience and Behaviour, McMaster University, Hamilton, ON, Canada.,Department of Ecology, Evolution and Marine Biology, University of California - Santa Barbara, Santa Barbara, CA, USA
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Grinsted L, Schou MF, Settepani V, Holm C, Bird TL, Bilde T. Prey to predator body size ratio in the evolution of cooperative hunting-a social spider test case. Dev Genes Evol 2019; 230:173-184. [PMID: 31768622 DOI: 10.1007/s00427-019-00640-w] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2019] [Accepted: 10/30/2019] [Indexed: 11/30/2022]
Abstract
One of the benefits of cooperative hunting may be that predators can subdue larger prey. In spiders, cooperative, social species can capture prey many times larger than an individual predator. However, we propose that cooperative prey capture does not have to be associated with larger caught prey per se, but with an increase in the ratio of prey to predator body size. This can be achieved either by catching larger prey while keeping predator body size constant, or by evolving a smaller predator body size while maintaining capture of large prey. We show that within a genus of relatively large spiders, Stegodyphus, subsocial spiders representing the ancestral state of social species are capable of catching the largest prey available in the environment. Hence, within this genus, the evolution of cooperation would not provide access to otherwise inaccessible, large prey. Instead, we show that social Stegodyphus spiders are smaller than their subsocial counterparts, while catching similar sized prey, leading to the predicted increase in prey-predator size ratio with sociality. We further show that in a genus of small spiders, Anelosimus, the level of sociality is associated with an increased size of prey caught while predator size is unaffected by sociality, leading to a similar, predicted increase in prey-predator size ratio. In summary, we find support for our proposed 'prey to predator size ratio hypothesis' and discuss how relaxed selection on large body size in the evolution of social, cooperative living may provide adaptive benefits for ancestrally relatively large predators.
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Affiliation(s)
- Lena Grinsted
- School of Biological Sciences, Royal Holloway University of London, Egham, Surrey, TW20 0EX, UK
| | - Mads F Schou
- Department of Biology, Lund University, 22362, Lund, Sweden
| | - Virginia Settepani
- Department of Biology, Aarhus University, Ny Munkegade 114-116, 8000, Aarhus C, Denmark
| | - Christina Holm
- Department of Biology, Aarhus University, Ny Munkegade 114-116, 8000, Aarhus C, Denmark
| | - Tharina L Bird
- Department of Biological Sciences and Biotechnology, Botswana International University of Science and Technology (BIUST), Plot, 10071, Palapye, Botswana
| | - Trine Bilde
- Department of Biology, Aarhus University, Ny Munkegade 114-116, 8000, Aarhus C, Denmark.
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